Deuel County, South Dakota

Deuel County
Deuel County Courthouse
Location within the U.S. state of South Dakota
South Dakota's location within the U.S.
Coordinates: 44°46′N 96°40′W / 44.76°N 96.67°W / 44.76; -96.67
Country United States
State South Dakota
Founded1862 (created)
1878 (organized)
Named afterJacob Deuel
SeatClear Lake
Largest cityClear Lake
Area
  Total
637 sq mi (1,650 km2)
  Land623 sq mi (1,610 km2)
  Water14 sq mi (40 km2)  2.2%
Population
 (2020)
  Total
4,295
  Estimate 
(2024)
4,335
  Density6.7/sq mi (2.6/km2)
Time zoneUTC−6 (Central)
  Summer (DST)UTC−5 (CDT)
Congressional districtAt-large
Websitedeuelcountysd.com

Deuel County (/ˈdl/ DOOL) is a county in the U.S. state of South Dakota. As of the 2020 census, the population was 4,295. Its county seat is Clear Lake. The county was created in 1862, and was organized in 1878. It is named for Jacob Deuel, a legislator in 1862.